However, he struggled in New York and moved to third-tier Orlando after one season.

Barnsley manager Keith Hill told the club website Rooney would not be expected to go straight into his first team squad.

"He's got to be given time," Hill said.

"There was no thought to get him included in first-team procedures so early. He's very much a development player and we're going to play him in development games and give him an opportunity to progress."